Probably it is a bug of .Net Reflector
For both methods, .Net Reflector says "Expression stack is empty" error for first instruction (a call) in exception handler, the methods called (_Call.M9aTxbyuJh(Object) and Installer1.caDHEaccj(Object) in this case) accept Exception as parameter.
The instructions should be ok but .Net Reflector just doesn't recognize this pattern.

here is a link for both assemblies - original and deobfuscated (the issue is on deobfuscated one)